Rumus Jumlah, Selisih dan Kali Trigonometri

Rumus Jumlah, Selisih dan Kali Trigonometri

11th Grade

10 Qs

quiz-placeholder

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Rumus Jumlah, Selisih dan Kali Trigonometri

Rumus Jumlah, Selisih dan Kali Trigonometri

Assessment

Quiz

Mathematics

11th Grade

Hard

Created by

Ms. Manullang

Used 18+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika  tanα=724 \tan\alpha=\frac{7}{24}\   dan  tanβ=43\tan\beta=\frac{4}{3}   dengan  α\alpha  dan  β\beta  sudut lancip, hasil dari  cos(α+β)=....\cos\left(\alpha+\beta\right)=....  

 44125\frac{44}{125}  

 75125\frac{75}{125}  

 96125\frac{96}{125}  

 115125\frac{115}{125}  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika  \left(\alpha+\beta\right)=30\degree  dan    sinα.cosβ=13\sin\alpha.\cos\beta=\frac{1}{3}  , maka  cosα.sinβ=....\cos\alpha.\sin\beta=....  


 16\frac{1}{6}  

 15\frac{1}{5}  

 14\frac{1}{4}  

 13\frac{1}{3}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Cermatilah pernyataan berikut.
I.  sin (a+b)=sin a cos b + cos a sin b\sin\ \left(a+b\right)=\sin\ a\ \cos\ b\ +\ \cos\ a\ \sin\ b  

II.  sin (ab) = sin a cos a+cos b sin b\sin\ \left(a-b\right)\ =\ \sin\ a\ \cos\ a+\cos\ b\ \sin\ b  

III.  cos (ab)=sinb cos a+cos bsin a\cos\ \left(a-b\right)=\sin b\ \cos\ a+\cos\ b\sin\ a  

IV.  cos (a+b) = cos a cos bsina sin b\cos\ \left(a+b\right)\ =\ \cos\ a\ \cos\ b-\sin a\ \sin\ b  

V.  tan(a+b)=tan a +tan b1tana tan b\tan\left(a+b\right)=\frac{\tan\ a\ +\tan\ b}{1-\tan a\ \tan\ b}  

Pernyataan di atas yang benar terdapat pada .....

I dan IV

I dan III

III dan II

II dan V

semua benar

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Cermatilah pernyataan berikut.
I. 2cosβsinγ=cos(βγ)+sin(β+γ)2\cos⁡β\sin⁡γ=\cos⁡(β-γ)+\sin⁡(β+γ)
II. 2sinβsinγ=cos(β+γ)+cos(βγ)2\sin⁡β\sin⁡γ=-\cos⁡(β+γ)+\cos⁡(β-γ)
III. 2cosβsinγ=sin(β+γ)sin(βγ)2\cos⁡β\sin⁡γ=\sin⁡(β+γ)-\sin⁡(β-γ)
IV. 2sinβcosγ=sin(β+γ)cos(β+γ)2\sin⁡β\cos⁡γ=\sin⁡(β+γ)-\cos⁡(β+γ)
V. 2cosβsinγ=cos(β+γ)+sin(βγ)2\cos⁡β\sin⁡γ=\cos⁡(β+γ)+\sin⁡(β-γ)
Pernyataan di atas yang benar terdapat pada .....

I dan IV

II dan III

III dan IV

IV dan V

semua salah

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 2 sin 60° sin 20° = ......2\ \sin\ 60\degree\ \sin\ 20\degree\ =\ ......  

 cos 40°\cos\ 40\degree  

 cos 80°cos 40°\cos\ 80\degree-\cos\ 40\degree  

 cos 0°\cos\ 0\degree  

 cos 40°  cos 80°\cos\ 40\degree\ -\ \cos\ 80\degree  

1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Pada suatu segitiga siku-siku ABC dengan siku-siku di C berlaku  \cos A.\cos B=\frac{1}{2} . Nilai dari  cos(αβ)=....\cos\left(\alpha-\beta\right)=....  


 1-1  

 12-\frac{1}{2}  

 00  

 11  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui  sinx=35\sin x=\frac{3}{5}  dengan sudut x adalah lancip. Nilai dari  sin2x\sin2x  adalah...

 2524\frac{25}{24}  

 2524-\frac{25}{24}  

 2425-\frac{24}{25}  

 725\frac{7}{25}  

 2425\frac{24}{25}  

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